diff options
Diffstat (limited to 'connectivity/source/cpool/ZPoolCollection.cxx')
| -rw-r--r-- | connectivity/source/cpool/ZPoolCollection.cxx | 581 |
1 files changed, 0 insertions, 581 deletions
diff --git a/connectivity/source/cpool/ZPoolCollection.cxx b/connectivity/source/cpool/ZPoolCollection.cxx deleted file mode 100644 index 664ffa6468..0000000000 --- a/connectivity/source/cpool/ZPoolCollection.cxx +++ /dev/null @@ -1,581 +0,0 @@ -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/************************************************************************* - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * Copyright 2000, 2010 Oracle and/or its affiliates. - * - * OpenOffice.org - a multi-platform office productivity suite - * - * This file is part of OpenOffice.org. - * - * OpenOffice.org is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 3 - * only, as published by the Free Software Foundation. - * - * OpenOffice.org is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License version 3 for more details - * (a copy is included in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU Lesser General Public License - * version 3 along with OpenOffice.org. If not, see - * <http://www.openoffice.org/license.html> - * for a copy of the LGPLv3 License. - * - ************************************************************************/ - -// MARKER(update_precomp.py): autogen include statement, do not remove -#include "precompiled_connectivity.hxx" -#include "ZPoolCollection.hxx" -#include "ZDriverWrapper.hxx" -#include "ZConnectionPool.hxx" -#include <com/sun/star/container/XHierarchicalNameAccess.hpp> -#include <com/sun/star/beans/PropertyValue.hpp> -#include <comphelper/extract.hxx> -#include <com/sun/star/beans/XPropertySet.hpp> -#include "diagnose_ex.h" - -using namespace ::com::sun::star::uno; -using namespace ::com::sun::star::lang; -using namespace ::com::sun::star::sdbc; -using namespace ::com::sun::star::beans; -using namespace ::com::sun::star::container; -using namespace ::com::sun::star::reflection; -using namespace ::osl; -using namespace connectivity; - -//-------------------------------------------------------------------- -static const ::rtl::OUString& getConnectionPoolNodeName() -{ - static ::rtl::OUString s_sNodeName( RTL_CONSTASCII_USTRINGPARAM( "org.openoffice.Office.DataAccess/ConnectionPool" )); - return s_sNodeName; -} -//-------------------------------------------------------------------- -static const ::rtl::OUString& getEnablePoolingNodeName() -{ - static ::rtl::OUString s_sNodeName( RTL_CONSTASCII_USTRINGPARAM( "EnablePooling" )); - return s_sNodeName; -} -//-------------------------------------------------------------------- -static const ::rtl::OUString& getDriverNameNodeName() -{ - static ::rtl::OUString s_sNodeName( RTL_CONSTASCII_USTRINGPARAM( "DriverName" )); - return s_sNodeName; -} -// ----------------------------------------------------------------------------- -static const ::rtl::OUString& getDriverSettingsNodeName() -{ - static ::rtl::OUString s_sNodeName( RTL_CONSTASCII_USTRINGPARAM( "DriverSettings" )); - return s_sNodeName; -} -//-------------------------------------------------------------------------- -static const ::rtl::OUString& getEnableNodeName() -{ - static ::rtl::OUString s_sNodeName( RTL_CONSTASCII_USTRINGPARAM( "Enable" )); - return s_sNodeName; -} - -//-------------------------------------------------------------------- -OPoolCollection::OPoolCollection(const Reference< XMultiServiceFactory >& _rxFactory) - :m_xServiceFactory(_rxFactory) -{ - // bootstrap all objects supporting the .sdb.Driver service - m_xManager = Reference< XDriverManager >(m_xServiceFactory->createInstance(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.sdbc.DriverManager")) ), UNO_QUERY); - m_xDriverAccess = Reference< XDriverAccess >(m_xManager, UNO_QUERY); - OSL_ENSURE(m_xDriverAccess.is(), "have no (or an invalid) driver manager!"); - - m_xProxyFactory = Reference< XProxyFactory >( - m_xServiceFactory->createInstance( - ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.reflection.ProxyFactory"))), - UNO_QUERY); - OSL_ENSURE(m_xProxyFactory.is(), "OConnectionPool::OConnectionPool: could not create a proxy factory!"); - - Reference<XPropertySet> xProp(getConfigPoolRoot(),UNO_QUERY); - if ( xProp.is() ) - xProp->addPropertyChangeListener(getEnablePoolingNodeName(),this); - // attach as desktop listener to know when we have to release our pools - osl_incrementInterlockedCount( &m_refCount ); - { - - m_xDesktop = Reference< ::com::sun::star::frame::XDesktop>( m_xServiceFactory->createInstance(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.frame.Desktop")) ), UNO_QUERY); - if ( m_xDesktop.is() ) - m_xDesktop->addTerminateListener(this); - - } - osl_decrementInterlockedCount( &m_refCount ); -} -// ----------------------------------------------------------------------------- -OPoolCollection::~OPoolCollection() -{ - clearConnectionPools(sal_False); -} -// ----------------------------------------------------------------------------- -Reference< XConnection > SAL_CALL OPoolCollection::getConnection( const ::rtl::OUString& _rURL ) throw(SQLException, RuntimeException) -{ - return getConnectionWithInfo(_rURL,Sequence< PropertyValue >()); -} -// ----------------------------------------------------------------------------- -Reference< XConnection > SAL_CALL OPoolCollection::getConnectionWithInfo( const ::rtl::OUString& _rURL, const Sequence< PropertyValue >& _rInfo ) throw(SQLException, RuntimeException) -{ - MutexGuard aGuard(m_aMutex); - Reference< XConnection > xConnection; - Reference< XDriver > xDriver; - Reference< XInterface > xDriverNode; - ::rtl::OUString sImplName; - if(isPoolingEnabledByUrl(_rURL,xDriver,sImplName,xDriverNode) && xDriver.is()) - { - OConnectionPool* pConnectionPool = getConnectionPool(sImplName,xDriver,xDriverNode); - - if(pConnectionPool) - xConnection = pConnectionPool->getConnectionWithInfo(_rURL,_rInfo); - } - else if(xDriver.is()) - xConnection = xDriver->connect(_rURL,_rInfo); - - return xConnection; -} -// ----------------------------------------------------------------------------- -void SAL_CALL OPoolCollection::setLoginTimeout( sal_Int32 seconds ) throw(RuntimeException) -{ - MutexGuard aGuard(m_aMutex); - m_xManager->setLoginTimeout(seconds); -} -// ----------------------------------------------------------------------------- -sal_Int32 SAL_CALL OPoolCollection::getLoginTimeout( ) throw(RuntimeException) -{ - MutexGuard aGuard(m_aMutex); - return m_xManager->getLoginTimeout(); -} -// ----------------------------------------------------------------------------- -::rtl::OUString SAL_CALL OPoolCollection::getImplementationName( ) throw(RuntimeException) -{ - MutexGuard aGuard(m_aMutex); - return getImplementationName_Static(); -} - -//-------------------------------------------------------------------------- -sal_Bool SAL_CALL OPoolCollection::supportsService( const ::rtl::OUString& _rServiceName ) throw(RuntimeException) -{ - Sequence< ::rtl::OUString > aSupported(getSupportedServiceNames()); - const ::rtl::OUString* pSupported = aSupported.getConstArray(); - const ::rtl::OUString* pEnd = pSupported + aSupported.getLength(); - for (;pSupported != pEnd && !pSupported->equals(_rServiceName); ++pSupported) - ; - - return pSupported != pEnd; -} - -//-------------------------------------------------------------------------- -Sequence< ::rtl::OUString > SAL_CALL OPoolCollection::getSupportedServiceNames( ) throw(RuntimeException) -{ - return getSupportedServiceNames_Static(); -} - -//---------------------------------------OPoolCollection---------------------------------- -Reference< XInterface > SAL_CALL OPoolCollection::CreateInstance(const Reference< XMultiServiceFactory >& _rxFactory) -{ - return static_cast<XDriverManager*>(new OPoolCollection(_rxFactory)); -} - -//-------------------------------------------------------------------------- -::rtl::OUString SAL_CALL OPoolCollection::getImplementationName_Static( ) throw(RuntimeException) -{ - return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.sdbc.OConnectionPool")); -} - -//-------------------------------------------------------------------------- -Sequence< ::rtl::OUString > SAL_CALL OPoolCollection::getSupportedServiceNames_Static( ) throw(RuntimeException) -{ - Sequence< ::rtl::OUString > aSupported(1); - aSupported[0] = ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.sdbc.ConnectionPool")); - return aSupported; -} -// ----------------------------------------------------------------------------- -Reference< XDriver > SAL_CALL OPoolCollection::getDriverByURL( const ::rtl::OUString& _rURL ) throw(RuntimeException) -{ - // returns the original driver when no connection pooling is enabled else it returns the proxy - MutexGuard aGuard(m_aMutex); - - Reference< XDriver > xDriver; - Reference< XInterface > xDriverNode; - ::rtl::OUString sImplName; - if(isPoolingEnabledByUrl(_rURL,xDriver,sImplName,xDriverNode)) - { - Reference< XDriver > xExistentProxy; - // look if we already have a proxy for this driver - for ( ConstMapDriver2DriverRefIterator aLookup = m_aDriverProxies.begin(); - aLookup != m_aDriverProxies.end(); - ++aLookup - ) - { - // hold the proxy alive as long as we're in this loop round - xExistentProxy = aLookup->second; - - if (xExistentProxy.is() && (aLookup->first.get() == xDriver.get())) - // already created a proxy for this - break; - } - if (xExistentProxy.is()) - { - xDriver = xExistentProxy; - } - else - { // create a new proxy for the driver - // this allows us to control the connections created by it - if (m_xProxyFactory.is()) - { - Reference< XAggregation > xDriverProxy = m_xProxyFactory->createProxy(xDriver.get()); - OSL_ENSURE(xDriverProxy.is(), "OConnectionPool::getDriverByURL: invalid proxy returned by the proxy factory!"); - - OConnectionPool* pConnectionPool = getConnectionPool(sImplName,xDriver,xDriverNode); - xDriver = new ODriverWrapper(xDriverProxy, pConnectionPool); - } - else - OSL_FAIL("OConnectionPool::getDriverByURL: could not instantiate a proxy factory!"); - } - } - - return xDriver; -} -// ----------------------------------------------------------------------------- -sal_Bool OPoolCollection::isDriverPoolingEnabled(const ::rtl::OUString& _sDriverImplName, - Reference< XInterface >& _rxDriverNode) -{ - sal_Bool bEnabled = sal_False; - Reference<XInterface> xConnectionPoolRoot = getConfigPoolRoot(); - // then look for which of them settings are stored in the configuration - Reference< XNameAccess > xDirectAccess(openNode(getDriverSettingsNodeName(),xConnectionPoolRoot),UNO_QUERY); - - if(xDirectAccess.is()) - { - Sequence< ::rtl::OUString > aDriverKeys = xDirectAccess->getElementNames(); - const ::rtl::OUString* pDriverKeys = aDriverKeys.getConstArray(); - const ::rtl::OUString* pDriverKeysEnd = pDriverKeys + aDriverKeys.getLength(); - for (;pDriverKeys != pDriverKeysEnd; ++pDriverKeys) - { - // the name of the driver in this round - if(_sDriverImplName == *pDriverKeys) - { - _rxDriverNode = openNode(*pDriverKeys,xDirectAccess); - if(_rxDriverNode.is()) - getNodeValue(getEnableNodeName(),_rxDriverNode) >>= bEnabled; - break; - } - } - } - return bEnabled; -} -// ----------------------------------------------------------------------------- -sal_Bool OPoolCollection::isPoolingEnabled() -{ - // the config node where all pooling relevant info are stored under - Reference<XInterface> xConnectionPoolRoot = getConfigPoolRoot(); - - // the global "enabled" flag - sal_Bool bEnabled = sal_False; - if(xConnectionPoolRoot.is()) - getNodeValue(getEnablePoolingNodeName(),xConnectionPoolRoot) >>= bEnabled; - return bEnabled; -} -// ----------------------------------------------------------------------------- -Reference<XInterface> OPoolCollection::getConfigPoolRoot() -{ - if(!m_xConfigNode.is()) - m_xConfigNode = createWithServiceFactory(getConnectionPoolNodeName()); - return m_xConfigNode; -} -// ----------------------------------------------------------------------------- -sal_Bool OPoolCollection::isPoolingEnabledByUrl(const ::rtl::OUString& _sUrl, - Reference< XDriver >& _rxDriver, - ::rtl::OUString& _rsImplName, - Reference< XInterface >& _rxDriverNode) -{ - sal_Bool bEnabled = sal_False; - if (m_xDriverAccess.is()) - { - _rxDriver = m_xDriverAccess->getDriverByURL(_sUrl); - if (_rxDriver.is() && isPoolingEnabled()) - { - Reference< XServiceInfo > xSerivceInfo(_rxDriver,UNO_QUERY); - OSL_ENSURE(xSerivceInfo.is(),"Each driver should have a XServiceInfo interface!"); - - if(xSerivceInfo.is()) - { - // look for the implementation name of the driver - _rsImplName = xSerivceInfo->getImplementationName(); - bEnabled = isDriverPoolingEnabled(_rsImplName,_rxDriverNode); - } - } - } - return bEnabled; -} -// ----------------------------------------------------------------------------- -void OPoolCollection::clearConnectionPools(sal_Bool _bDispose) -{ - OConnectionPools::const_iterator aIter = m_aPools.begin(); - while(aIter != m_aPools.end()) - { - aIter->second->clear(_bDispose); - aIter->second->release(); - ::rtl::OUString sKeyValue = aIter->first; - ++aIter; - m_aPools.erase(sKeyValue); - } -} -// ----------------------------------------------------------------------------- -OConnectionPool* OPoolCollection::getConnectionPool(const ::rtl::OUString& _sImplName, - const Reference< XDriver >& _xDriver, - const Reference< XInterface >& _xDriverNode) -{ - OConnectionPool *pRet = 0; - OConnectionPools::const_iterator aFind = m_aPools.find(_sImplName); - if (aFind != m_aPools.end()) - pRet = aFind->second; - else if (_xDriver.is() && _xDriverNode.is()) - { - Reference<XPropertySet> xProp(_xDriverNode,UNO_QUERY); - if(xProp.is()) - xProp->addPropertyChangeListener(getEnableNodeName(),this); - OConnectionPool* pConnectionPool = new OConnectionPool(_xDriver,_xDriverNode,m_xProxyFactory); - pConnectionPool->acquire(); - aFind = m_aPools.insert(OConnectionPools::value_type(_sImplName,pConnectionPool)).first; - pRet = aFind->second; - } - - OSL_ENSURE(pRet, "Could not query DriverManager from ConnectionPool!"); - - return pRet; -} -// ----------------------------------------------------------------------------- -Reference< XInterface > OPoolCollection::createWithServiceFactory(const ::rtl::OUString& _rPath) const -{ - Reference< XInterface > xInterface; - try - { - Reference< XInterface > xProvider = m_xServiceFactory->createInstance(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.configuration.ConfigurationProvider"))); - OSL_ENSURE(xProvider.is(), "OConfigurationTreeRoot::createWithServiceFactory: could not instantiate the config provider service!"); - Reference< XMultiServiceFactory > xProviderAsFac(xProvider, UNO_QUERY); - OSL_ENSURE(xProviderAsFac.is() || !xProvider.is(), "OConfigurationTreeRoot::createWithServiceFactory: the provider is missing an interface!"); - if (xProviderAsFac.is()) - xInterface = createWithProvider(xProviderAsFac, _rPath); - } - catch(const Exception&) - { - OSL_FAIL("createWithServiceFactory: error while instantiating the provider service!"); - } - return xInterface; -} -//------------------------------------------------------------------------ -Reference< XInterface > OPoolCollection::createWithProvider(const Reference< XMultiServiceFactory >& _rxConfProvider, - const ::rtl::OUString& _rPath) const -{ - OSL_ENSURE(_rxConfProvider.is(), "createWithProvider: invalid provider!"); - - Reference< XInterface > xInterface; -#ifdef DBG_UTIL - if (_rxConfProvider.is()) - { - try - { - Reference< XServiceInfo > xSI(_rxConfProvider, UNO_QUERY); - if (!xSI.is()) - { - OSL_FAIL("::createWithProvider: no XServiceInfo interface on the provider!"); - } - else - { - OSL_ENSURE(xSI->supportsService(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.configuration.ConfigurationProvider"))), - "::createWithProvider: sure this is a provider? Missing the ConfigurationProvider service!"); - } - } - catch(const Exception&) - { - OSL_FAIL("::createWithProvider: unable to check the service conformance of the provider given!"); - } - } -#endif - - if (_rxConfProvider.is()) - { - try - { - Sequence< Any > aCreationArgs(3); - aCreationArgs[0] = makeAny(PropertyValue(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("nodepath")), 0, makeAny(_rPath), PropertyState_DIRECT_VALUE)); - aCreationArgs[1] = makeAny(PropertyValue(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("depth")), 0, makeAny((sal_Int32)-1), PropertyState_DIRECT_VALUE)); - aCreationArgs[2] = makeAny(PropertyValue(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("lazywrite")), 0, makeAny(sal_True), PropertyState_DIRECT_VALUE)); - - static ::rtl::OUString sAccessService( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.configuration.ConfigurationAccess" )); - - xInterface = _rxConfProvider->createInstanceWithArguments(sAccessService, aCreationArgs); - OSL_ENSURE(xInterface.is(), "::createWithProvider: could not create the node access!"); - } - catch(Exception&) - { - OSL_FAIL("OConfigurationTreeRoot::createWithProvider: caught an exception while creating the access object!"); - } - } - return xInterface; -} -// ----------------------------------------------------------------------------- -Reference<XInterface> OPoolCollection::openNode(const ::rtl::OUString& _rPath,const Reference<XInterface>& _xTreeNode) const throw() -{ - Reference< XHierarchicalNameAccess > xHierarchyAccess(_xTreeNode, UNO_QUERY); - Reference< XNameAccess > xDirectAccess(_xTreeNode, UNO_QUERY); - Reference< XInterface > xNode; - - try - { - if (xDirectAccess.is() && xDirectAccess->hasByName(_rPath)) - { - if (!::cppu::extractInterface(xNode, xDirectAccess->getByName(_rPath))) - OSL_FAIL("OConfigurationNode::openNode: could not open the node!"); - } - else if (xHierarchyAccess.is()) - { - if (!::cppu::extractInterface(xNode, xHierarchyAccess->getByHierarchicalName(_rPath))) - OSL_FAIL("OConfigurationNode::openNode: could not open the node!"); - } - - } - catch(const NoSuchElementException&) - { - OSL_FAIL(::rtl::OString("::openNode: there is no element named ") - += ::rtl::OString(_rPath.getStr(), _rPath.getLength(), RTL_TEXTENCODING_ASCII_US) - += ::rtl::OString("!")); - } - catch(Exception&) - { - OSL_FAIL("OConfigurationNode::openNode: caught an exception while retrieving the node!"); - } - return xNode; -} -// ----------------------------------------------------------------------------- -Any OPoolCollection::getNodeValue(const ::rtl::OUString& _rPath,const Reference<XInterface>& _xTreeNode) throw() -{ - Reference< XHierarchicalNameAccess > xHierarchyAccess(_xTreeNode, UNO_QUERY); - Reference< XNameAccess > xDirectAccess(_xTreeNode, UNO_QUERY); - Any aReturn; - try - { - if (xDirectAccess.is() && xDirectAccess->hasByName(_rPath) ) - { - aReturn = xDirectAccess->getByName(_rPath); - } - else if (xHierarchyAccess.is()) - { - aReturn = xHierarchyAccess->getByHierarchicalName(_rPath); - } - } - catch(NoSuchElementException& e) - { - OSL_UNUSED( e ); // make compiler happy - OSL_FAIL(::rtl::OString("::getNodeValue: caught a NoSuchElementException while trying to open ") - += ::rtl::OString(e.Message.getStr(), e.Message.getLength(), RTL_TEXTENCODING_ASCII_US) - += ::rtl::OString("!")); - } - return aReturn; -} -// ----------------------------------------------------------------------------- -void SAL_CALL OPoolCollection::queryTermination( const EventObject& /*Event*/ ) throw (::com::sun::star::frame::TerminationVetoException, RuntimeException) -{ -} -// ----------------------------------------------------------------------------- -void SAL_CALL OPoolCollection::notifyTermination( const EventObject& /*Event*/ ) throw (RuntimeException) -{ - clearDesktop(); -} -// ----------------------------------------------------------------------------- -void SAL_CALL OPoolCollection::disposing( const EventObject& Source ) throw (RuntimeException) -{ - MutexGuard aGuard(m_aMutex); - if ( m_xDesktop == Source.Source ) - { - clearDesktop(); - } - else - { - try - { - Reference<XPropertySet> xProp(Source.Source,UNO_QUERY); - if(Source.Source == m_xConfigNode) - { - if ( xProp.is() ) - xProp->removePropertyChangeListener(getEnablePoolingNodeName(),this); - m_xConfigNode.clear(); - } - else if ( xProp.is() ) - xProp->removePropertyChangeListener(getEnableNodeName(),this); - } - catch(const Exception&) - { - OSL_FAIL("Exception caught"); - } - } -} -// ----------------------------------------------------------------------------- -void SAL_CALL OPoolCollection::propertyChange( const ::com::sun::star::beans::PropertyChangeEvent& evt ) throw (RuntimeException) -{ - MutexGuard aGuard(m_aMutex); - if(evt.Source == m_xConfigNode) - { - sal_Bool bEnabled = sal_True; - evt.NewValue >>= bEnabled; - if(!bEnabled ) - { - m_aDriverProxies.clear(); - m_aDriverProxies = MapDriver2DriverRef(); - OConnectionPools::iterator aIter = m_aPools.begin(); - for(;aIter != m_aPools.end();++aIter) - { - aIter->second->clear(sal_False); - aIter->second->release(); - } - m_aPools.clear(); - m_aPools = OConnectionPools(); - } - } - else if(evt.Source.is()) - { - sal_Bool bEnabled = sal_True; - evt.NewValue >>= bEnabled; - if(!bEnabled) - { - ::rtl::OUString sThisDriverName; - getNodeValue(getDriverNameNodeName(),evt.Source) >>= sThisDriverName; - // 1nd relase the driver - // look if we already have a proxy for this driver - MapDriver2DriverRefIterator aLookup = m_aDriverProxies.begin(); - while( aLookup != m_aDriverProxies.end()) - { - MapDriver2DriverRefIterator aFind = aLookup; - Reference<XServiceInfo> xInfo(aLookup->first,UNO_QUERY); - ++aLookup; - if(xInfo.is() && xInfo->getImplementationName() == sThisDriverName) - m_aDriverProxies.erase(aFind); - } - - // 2nd clear the connectionpool - OConnectionPools::iterator aFind = m_aPools.find(sThisDriverName); - if(aFind != m_aPools.end() && aFind->second) - { - aFind->second->clear(sal_False); - aFind->second->release(); - m_aPools.erase(aFind); - } - } - } -} -// ----------------------------------------------------------------------------- -void OPoolCollection::clearDesktop() -{ - clearConnectionPools(sal_True); - if ( m_xDesktop.is() ) - m_xDesktop->removeTerminateListener(this); -m_xDesktop.clear(); -} -// ----------------------------------------------------------------------------- - - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |